Enhanced Higgs pair production from higgsino decay at the HL-LHC

doi:10.1016/j.nuclphysb.2022.115912

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	Enhanced Higgs pair production from higgsino decay at the HL-LHC
	Dai, Jianpeng 1; Liu, Tao 1,3; Wang, Daohan 1; Yang, Jin Min 1
刊名	NUCLEAR PHYSICS B
	2022
卷号	983 页码:115912
关键词	BOSON SUPERSYMMETRY COLLISIONS SEARCH
ISSN号	0550-3213
DOI	10.1016/j.nuclphysb.2022.115912
英文摘要	The scenario of multi-sector SUSY breaking predicts pseudo-goldstinos which are not absorbed by the gravitino and their mass can be as low as O(0.1) GeV. Since the interactions of pseudo-goldstinos are not so weak as gravitino, a produced higgsino can decay to a pseudo-goldstino plus a Higgs boson insider the detector at the LHC, and thus the higgsino pair production can lead to the signal of Higgs pair plus missing energy. For the scenario of natural SUSY which requires rather light higgsinos, such events may sizably outnumber the Higgs pair events predicted by the SM and be accessible at the HL-LHC (14 TeV with a luminosity of 3 ab(-1)). In this work we examine the observability of such Higgs pair plus missing energy from the decay of light higgsinos produced at the HL-LHC. Considering three channels of the Higgs-pair decay (bbWW*, bb gamma gamma, bbbb), our detailed Monte Carlo simulations for the signal and backgrounds show that the best channel is bbbb + E-T, whose statistical significance can reach 2 sigma level for a light higgsino allowed by current experiments. This is over the SM Higgs pair result which is about 1.8 sigma. (C) 2022 The Author(s). Published by Elsevier B.V.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27740]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Dai, Jianpeng,Liu, Tao,Wang, Daohan,et al. Enhanced Higgs pair production from higgsino decay at the HL-LHC[J]. NUCLEAR PHYSICS B,2022,983:115912.
APA	Dai, Jianpeng,Liu, Tao,Wang, Daohan,&Yang, Jin Min.(2022).Enhanced Higgs pair production from higgsino decay at the HL-LHC.NUCLEAR PHYSICS B,983,115912.
MLA	Dai, Jianpeng,et al."Enhanced Higgs pair production from higgsino decay at the HL-LHC".NUCLEAR PHYSICS B 983(2022):115912.